Per- ja polüfluoroalküülained (PFAS) on inimtekkeliste kemikaalide rühm, mida iseloomustab tugev side fluori ja süsiniku vahel. Selle tugeva sideme tõttu pakuvad PFAS-id elastsust ja vastupidavust. Need omadused on esinejale kasulikud...
Loe rohkemHangzhou Guanglian Complex Paper Co.,Ltd was established in 1994 with more than 20 years’silicone coating experience,a professional factory of food grade silicone coated baking parchment paper. In 2018, the company invested 26,000 square me...
Loe rohkem2024-03-27
2024-03-27